<div *ngIf="params.data.user">
  <strong>{{ 'event.gridHeader.USER_NAME' | translate }} :</strong>
  <span> {{ params.data.user }} </span>
</div>
<div *ngIf="params.data.user_roles">
  <strong>{{ 'event.gridHeader.USER_ROLES' | translate }} :</strong>
  <span> {{ userRoles }} </span>
</div>
